这是错误的想法，你必须相信自己说，是的，我犯了错误，我已经做错了，我一直踌躇不前，但是我可以改正。

These are wrong ideas, you have to trust yourself saying, 'Yes I have made mistakes, I have been doing wrong, I've been faltering, but I can correct.

youdao

It's a common mistake to make if you forget that I've actually declared that variable up top, but wait a minute, I know any time that I use a variable, I have to declare it.

这是一个通常犯的错误，如果你忘了,之前在前面已经声明了这个变量，等等，我知道在任何时候,我使用一个变量，我必须声明它。

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